Due to the persistence of the COVID-19 health emergency, after carefully evaluating alternative options, the Board of Directors of the Opera Nazionale Montessori held on Friday 2 July 2021, resolved to carry out online the International Congress to celebrate the 150th anniversary of the birth of Maria Artemisia Montessori, which took place on 31 August 1870 in Chiaravalle, in the province of Ancona. The Congress is promoted by Opera Nazionale Montessori (ONM), Association Montessori Internationale (AMI), Montessori-Pierson Publishing Company, Chiaravalle Municipality. 

Italian and international speakers will focus on historical, scientific, pedagogical, philosophical and social aspects of thought and work of Maria Montessori. During the Congress will be presented the PRIN "Progetto di Rilevante Interesse Nazionale” 2017 on the topic “Maria Montessori from the past to the present. Reception and implementation of her educational method in Italy on the 150th anniversary of her birth".